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Sports Medicine—Open

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https://www.readbyqxmd.com/read/29423763/associations-between-practice-related-changes-in-motor-performance-and-muscle-activity-in-healthy-individuals-a-systematic-review
#1
REVIEW
Dennis Brueckner, Rainer Kiss, Thomas Muehlbauer
BACKGROUND: A well-learned motor skill is characterized by the efficient activation of muscles that are involved in movement execution. However, it is unclear if practice-related changes in motor performance correlate with those in quantitative markers of muscle activity and if so, whether the association is different with respect to the investigated muscle (i.e., agonist and antagonist) and quantitative myoelectric parameter. Thus, we conducted a systematic review and characterized associations between practice-related changes in motor performance and muscle activity in healthy individuals...
February 8, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29388074/correction-to-aerobic-but-not-resistance-exercise-can-induce-inflammatory-pathways-via-toll-like-2-and-4-a-systematic-review
#2
P A M Cavalcante, M F Gregnani, J S Henrique, F H Ornellas, R C Araújo
The original article [1] mistakenly omits a grant acknowledgement; thus, the authors would like to acknowledge that the original article was supported by FAPESP 2015/20082-7.
January 31, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29387986/initial-symptom-presentation-after-high-school-football-related-concussion-varies-by-time-point-in-a-season-an-initial-investigation
#3
Benjamin L Brett, Andrew W Kuhn, Aaron M Yengo-Kahn, Zachary Y Kerr, Christopher M Bonfield, Gary S Solomon, Scott L Zuckerman
BACKGROUND: Schedule-based and in-season factors (e.g., competition type) have been shown to be associated with symptom reporting patterns and injury severity in sport-related concussion (SRC). To determine if acute neurocognitive and symptom presentation following SRC differ by time point within a high school football season. METHODS: Multicenter ambispective cohort of high school football players who sustained a SRC (N = 2594). Timing (early, mid, and late season) of SRC was based on median dates for the start of the pre-season, regular season, and playoffs of each states' football schedules...
January 31, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29330780/safety-in-mixed-martial-arts-a-7-year-review-of-cancelled-mma-bouts-in-calgary-alberta-during-the-pre-bout-medical-examination-period
#4
Gwynn Curran-Sills
BACKGROUND: Presently, there is no literature that examines the reasons for the cancellation of amateur or professional mixed martial arts (MMA) bouts. The purpose of this study was to review the circumstances that lead to the cancellation of MMA bouts by Calgary ringside physicians during the pre-bout examination period and to identify any emerging patterns that may guide the regulatoin of this sport. METHODS: The case-series  was constructed from the Calgary Combative Sports Commission pre-bout examination records and the medical records submitted by each athlete from January 2010 to December 2016...
January 12, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29330738/a-video-review-of-multiple-concussion-signs-in-national-rugby-league-match-play
#5
Andrew J Gardner, David R Howell, Grant L Iverson
BACKGROUND: Video review has been introduced in many professional sports worldwide to help recognize concussions. However, to date, there has been very little research on the accuracy of using video analysis to identify signs of concussion and the various combinations of observed signs. METHODS: The objective of the study is to determine the accuracy of combinations of clinical signs of concussion identified using video analysis to identify concussions in the National Rugby League (NRL)...
January 12, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29313156/frequency-of-self-reported-concussion-amongst-professional-and-semi-professional-footballers-in-ireland-during-the-2014-season-a-cross-sectional-study
#6
Nicola Coffey, Martin Lawless, Seamus Kelly, Conor Buggy
BACKGROUND: This paper examines the occupational risk of concussion amongst professional and semi-professional footballers in Ireland during the 2014 League of Ireland season. As part of a broader nationally representative study examining occupational safety and health (OSH) awareness amongst professional footballers, this empirical quantitative study, utilising a convenience sample is the first and largest investigation of the frequency of, and attitudes towards, concussion and concussion reporting amongst Irish senior professional and semi-professional footballers...
January 8, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29305780/corticosteroid-injection-for-an-orthopedic-complaint-in-a-female-with-gestational-diabetes
#7
Palee Myrex, Lorie Harper, Sara Gould
A female with gestational diabetes presented with hip pain characteristic of meralgia paresthetica and trochanteric bursitis. She had similar episodes prior to pregnancy that were treated successfully with non-steroidal anti-inflammatory drugs (NSAIDs) and corticosteroid injections. However, NSAID use during pregnancy poses risks to the fetus and corticosteroids carry a risk of hyperglycemia, especially in those with diabetes. Unfortunately, all attempts made to treat her conservatively failed to improve her symptoms...
January 5, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29305667/a-pilot-study-comparing-the-metabolic-profiles-of-elite-level-athletes-from-different-sporting-disciplines
#8
Fatima Al-Khelaifi, Ilhame Diboun, Francesco Donati, Francesco Botrè, Mohammed Alsayrafi, Costas Georgakopoulos, Karsten Suhre, Noha A Yousri, Mohamed A Elrayess
BACKGROUND: The outstanding performance of an elite athlete might be associated with changes in their blood metabolic profile. The aims of this study were to compare the blood metabolic profiles between moderate- and high-power and endurance elite athletes and to identify the potential metabolic pathways underlying these differences. METHODS: Metabolic profiling of serum samples from 191 elite athletes from different sports disciplines (121 high- and 70 moderate-endurance athletes, including 44 high- and 144 moderate-power athletes), who participated in national or international sports events and tested negative for doping abuse at anti-doping laboratories, was performed using non-targeted metabolomics-based mass spectroscopy combined with ultrahigh-performance liquid chromatography...
January 5, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29299780/the-key-roles-of-negative-pressure-breathing-and-exercise-in-the-development-of-interstitial-pulmonary-edema-in-professional-male-scuba-divers
#9
Olivier Castagna, Jacques Regnard, Emmanuel Gempp, Pierre Louge, François Xavier Brocq, Bruno Schmid, Anne-Virginie Desruelle, Valentin Crunel, Adrien Maurin, Romain Chopard, David Hunter MacIver
BACKGROUND: Immersion pulmonary edema is potentially a catastrophic condition; however, the pathophysiological mechanisms are ill-defined. This study assessed the individual and combined effects of exertion and negative pressure breathing on the cardiovascular system during the development of pulmonary edema in SCUBA divers. METHODS: Sixteen male professional SCUBA divers performed four SCUBA dives in a freshwater pool at 1 m depth while breathing air at either a positive or negative pressure both at rest or with exercise...
January 3, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29260420/physical-characteristics-of-players-within-the-australian-football-league-participation-pathways-a-systematic-review
#10
REVIEW
Jade A Z Haycraft, Stephanie Kovalchik, David B Pyne, Sam Robertson
BACKGROUND: Australian football (AF) players require endurance, strength, speed, and agility to be successful. Tests assessing physical characteristics are commonly used for talent identification; however, their ability to differentiate between players across the Australian Football League's (AFL) participation pathway remains unclear. The objective of this review was to quantify the physical characteristics of male AF players across the AFL participation pathway. METHODS: A search of databases was undertaken...
December 19, 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/29222606/hypothalamic-pituitary-adrenal-hpa-axis-functioning-in-overtraining-syndrome-findings-from-endocrine-and-metabolic-responses-on-overtraining-syndrome-eros-eros-hpa-axis
#11
Flavio A Cadegiani, Claudio E Kater
BACKGROUND: Overtraining syndrome (OTS) results from excessive training load without adequate recovery and leads to decreased performance and fatigue. The pathophysiology of OTS in athletes is not fully understood, which makes accurate diagnosis difficult. Previous studies indicate that alterations in the hypothalamus-pituitary-adrenal (HPA) axis may be responsible for OTS; however, the data is not conclusive. This study aimed to compare, through gold standard and exercise-independent tests, the response of the HPA axis in OTS-affected athletes (OTS group) to healthy physically active subjects (ATL group) and healthy non-active subjects (NCS group)...
December 8, 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/29218470/the-maximal-oxygen-uptake-verification-phase-a-light-at-the-end-of-the-tunnel
#12
REVIEW
Gustavo Z Schaun
Commonly performed during an incremental test to exhaustion, maximal oxygen uptake (V̇O2max) assessment has become a recurring practice in clinical and experimental settings. To validate the test, several criteria were proposed. In this context, the plateau in oxygen uptake (V̇O2) is inconsistent in its frequency, reducing its usefulness as a robust method to determine "true" V̇O2max. Moreover, secondary criteria previously suggested, such as expiratory exchange ratios or percentages of maximal heart rate, are highly dependent on protocol design and often are achieved at V̇O2 percentages well below V̇O2max...
December 8, 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28785961/characteristics-of-the-foot-static-alignment-and-the-plantar-pressure-associated-with-fifth-metatarsal-stress-fracture-history-in-male-soccer-players-a-case-control-study
#13
Sho Matsuda, Toru Fukubayashi, Norikazu Hirose
BACKGROUND: There is a large amount of information regarding risk factors for fifth metatarsal stress fractures; however, there are few studies involving large numbers of subjects. This study aimed to compare the static foot alignment and distribution of foot pressure of athletes with and without a history of fifth metatarsal stress fractures. METHODS: The study participants comprised 335 collegiate male soccer players. Twenty-nine with a history of fifth metatarsal stress fractures were in the fracture group and 306 were in the control group (with subgroups as follows: 30 in the fracture foot group and 28 in the non-fracture group)...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28710723/observational-review-and-analysis-of-concussion-a-method-for-conducting-a-standardized-video-analysis-of-concussion-in-rugby-league
#14
Andrew J Gardner, Christopher R Levi, Grant L Iverson
BACKGROUND: Several professional contact and collision sports have recently introduced the use of sideline video review for club medical staff to help identify and manage concussions. As such, reviewing video footage on the sideline has become increasingly relied upon to assist with improving the identification of possible injury. However, as yet, a standardized method for reviewing such video footage in rugby league has not been published. The aim of this study is to evaluate whether independent raters reliably agreed on the injury characterization when using a standardized observational instrument to record video footage of National Rugby League (NRL) concussions...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28674872/efficacy-of-wearing-compression-garments-during-post-exercise-period-after-two-repeated-bouts-of-strenuous-exercise-a-randomized-crossover-design-in-healthy-active-males
#15
Kazushige Goto, Sahiro Mizuno, Ayaka Mori
BACKGROUND: The efficacy of wearing [a] compression garment (CG) between repeated bouts of exercise within a same day has not been fully understood. The present study determined the effect of wearing a CG after strenuous exercise sessions (consisting of sprint exercise, resistance exercise, drop jump) twice a day on exercise performance, muscle damage, and inflammatory responses. METHODS: Eleven physically active males (age, 22.7 ± 0.9 years; height, 175...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28647923/foodborne-illness-outbreak-investigation-in-a-high-profile-sports-club
#16
Kwendy Cavanagh, Travers Johnstone, Essi Huhtinen, Zeina Najjar, Peter Lorentzos, Craig Shadbolt, John Shields, Leena Gupta
A foodborne illness outbreak involving an elite sports team was investigated by a public health unit in Sydney, Australia. An epidemiological association was established between gastrointestinal illness and the consumption of food supplied by an external caterer, with a lamb meal most strongly associated with illness. Genetically identical Salmonella isolates were identified from clinical specimens, residual food items, and an environmental swab taken from the catering premises. The training schedule and other club operations were significantly affected by this outbreak...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28631257/the-validity-and-responsiveness-of-isometric-lower-body-multi-joint-tests-of-muscular-strength-a-systematic-review
#17
REVIEW
David Drake, Rodney Kennedy, Eric Wallace
BACKGROUND: Researchers and practitioners working in sports medicine and science require valid tests to determine the effectiveness of interventions and enhance understanding of mechanisms underpinning adaptation. Such decision making is influenced by the supportive evidence describing the validity of tests within current research. The objective of this study is to review the validity of lower body isometric multi-joint tests ability to assess muscular strength and determine the current level of supporting evidence...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28585109/efficacy-and-tolerability-of-peritendinous-hyaluronic-acid-in-patients-with-supraspinatus-tendinopathy-a-multicenter-randomized-controlled-trial
#18
César Flores, Ramón Balius, Guillermo Álvarez, Miguel A Buil, Luisa Varela, Carlos Cano, Joaquín Casariego
BACKGROUND: Physical therapy and peritendinous hyaluronic acid (HA) injections have both shown promising results in the treatment of shoulder tendinopathies. However, the superiority of treatment combining physical therapy and HA is unclear. METHODS: Patients with ultrasound-confirmed supraspinatus tendinopathy were randomized to receive either physical therapy + subacromial HA injections or physical therapy only. Treatment efficacy was assessed using a Visual Analog Scale (VAS) for pain and an Activities of Daily Living (ADL) scale...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28577222/relationship-between-the-relative-age-effect-and-lengths-of-professional-careers-in-male-japanese-baseball-players-a-retrospective-analysis
#19
Hiroki Nakata
BACKGROUND: The mechanisms underlying the relative age effect in sport events have been investigated for more than two decades. The present study focused on the relationship between the relative age effect and lengths of professional careers among professional male Japanese baseball players. METHODS: The birth dates of players and lengths of professional careers were collected from an official publication, and data were divided into four quarters (Q1: April-June; Q2: July-September; Q3: October-December; Q4: January-March of the following year) grouped by 3 years...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28523640/biomedical-risk-factors-of-achilles-tendinopathy-in-physically-active-people-a-systematic-review
#20
REVIEW
Maria Kozlovskaia, Nicole Vlahovich, Kevin J Ashton, David C Hughes
BACKGROUND: Achilles tendinopathy is the most prevalent tendon disorder in people engaged in running and jumping sports. Aetiology of Achilles tendinopathy is complex and requires comprehensive research of contributing risk factors. There is relatively little research focussing on potential biomedical risk factors for Achilles tendinopathy. The purpose of this systematic review is to identify studies and summarise current knowledge of biomedical risk factors of Achilles tendinopathy in physically active people...
December 2017: Sports Medicine—Open
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